Foam core laminate structures with facer material and...

Details Foam core laminate structures with facer material and... Foam core laminate structures with facer material and...

B - Operations, Transporting

32

B

154/141, 154/90,

B32B 5/18 (2006.01) B32B 7/12 (2006.01) B32B 27/40 (2006.01)

Patent

CA 1292933

TITLE FOAM CORE LAMINATE STRUCTURES WITH FACER MATERIAL AND INTERACTIVE ADHESIVE ABSTRACT OF THE DISCLOSURE Laminate structures comprising a foamed polyurethane or polyisocyanurate resin core with a facer material uniformly adhered thereto with an adhesive material having functional groups capable of interacting chemically with isocyanate groups in the foamed resin core are disclosed. Suitable adhesive materials include .alpha.-olefin-acid copolymers, ethylene vinyl alcohol, polyimides, polyamines and phenolic resins. The bond between the foam core and the facer material has a peel strength of at least 1.5 lbs/in., preferably 5 lbs/in. AD-5479

518906

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